Building units and construction elements – Architectural stock material – Extruded shape
Design Patent
2007-04-24
2007-04-24
Clark, Doris (Department: 2914)
Building units and construction elements
Architectural stock material
Extruded shape
Design Patent
active
29224366
CLAIM:
The ornamental design for a structural beam, as shown and described.
REFERENCES:
patent: D291832 (1987-09-01), Lundstrom
patent: D426320 (2000-06-01), Andres
patent: 6397550 (2002-06-01), Walker et al.
Dempsey Ross Ian
Watkins Russell Lambert
Holme Roberts & Owen LLP
Smorgon Steel LiteSteel Products Pty Ltd
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